(function(window, document, undefined) { var hearts = [];
    window.requestAnimationFrame = (function() { return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function(callback) { setTimeout(callback, 1000 / 60); } })();
    init();

    function init() { css(".heart{width: 10px;height: 10px;position: fixed;background: #f00;transform: rotate(45deg);-webkit-transform: rotate(45deg);-moz-transform: rotate(45deg);}.heart:after,.heart:before{content: '';width: inherit;height: inherit;background: inherit;border-radius: 50%;-webkit-border-radius: 50%;-moz-border-radius: 50%;position: absolute;}.heart:after{top: -5px;}.heart:before{left: -5px;}");
        attachEvent();
        gameloop(); }

    function gameloop() { for (var i = 0; i < hearts.length; i++) { if (hearts[i].alpha <= 0) { document.body.removeChild(hearts[i].el);
                hearts.splice(i, 1); continue; } hearts[i].y--;
            hearts[i].scale += 0.004;
            hearts[i].alpha -= 0.013;
            hearts[i].el.style.cssText = "left:" + hearts[i].x + "px;top:" + hearts[i].y + "px;opacity:" + hearts[i].alpha + ";transform:scale(" + hearts[i].scale + "," + hearts[i].scale + ") rotate(45deg);background:" + hearts[i].color; } requestAnimationFrame(gameloop); }

    function attachEvent() { var old = typeof window.onclick === "function" && window.onclick;
        window.onclick = function(event) { old && old();
            createHeart(event); } }

    function createHeart(event) { var d = document.createElement("div");
        d.className = "heart";
        hearts.push({ el: d, x: event.clientX - 5, y: event.clientY - 5, scale: 1, alpha: 1, color: randomColor() });
        document.body.appendChild(d); }

    function css(css) { var style = document.createElement("style");
        style.type = "text/css"; try { style.appendChild(document.createTextNode(css)); } catch (ex) { style.styleSheet.cssText = css; } document.getElementsByTagName('head')[0].appendChild(style); }

    function randomColor() { return "rgb(" + (~~(Math.random() * 255)) + "," + (~~(Math.random() * 255)) + "," + (~~(Math.random() * 255)) + ")"; } })(window, document);